@jabramson623 I’m running short on ideas here now, sometimes Windows networking is just troublesome, it’s back to basic troubleshooting since it works some of the time, check your NIC drivers are up to date as step 1, you could try disabling QoS & any other fancy stuff you don’t need in the properties for the connection (adapter settings), sometimes switching mode between offloading being enabled or disabled helps (same property sheet behind the “Config” button), sometimes setting the speed rather than leaving it at Auto, sometimes other things. Always worth checking the cables.
Also worth looking in the event logs & dealing with any networking errors or warnings you find there, that’s caused me much googling of event ID numbers and adjustments to registry values like IRPStackSize in the past for specific misbehaving machines, depends what events you find and what fixes google turns up, fixing those things can’t hurt and might help
I even have one client where I’ve had to limit LAN backup speed for UrBackup to way slower than it does other file transfers, or the NIC driver crashes and kills networking for the entire machine till after a reboot… no idea of the “cause” for that other than “dodgy driver” old hardware no updates to ancient driver available.
Note to self… stick a gigabit card in there and disable the on-board 10/100 in BIOS sometime.
If things behave is often down to your specific config, including exactly what hardware & driver combination you’re using… sorry I can’t point you anywhere specific, it’s down to digging and trying stuff, one step at a time till you find what fixes it… don’t make a ton of changes at once, and revert changes that don’t make any difference…
Mostly these days Windows Networking “Just works” but it’s a nightmare when it “Just doesn’t work quite right”.